Move 'response' check in responseReceived() to the backend.

Source/devtools/front_end/NetworkManager.js

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 146 matching lines @@
         networkRequest.setRequestHeaders(this._headersMapToHeadersArray(request.headers));
         networkRequest.requestFormData = request.postData;
     },
 
     /**
      * @param {!WebInspector.NetworkRequest} networkRequest
      * @param {!NetworkAgent.Response=} response
      */
     _updateNetworkRequestWithResponse: function(networkRequest, response)
     {
-        if (!response)
-            return;
-
         if (response.url && networkRequest.url !== response.url)
             networkRequest.url = response.url;
         networkRequest.mimeType = response.mimeType;
         networkRequest.statusCode = response.status;
         networkRequest.statusText = response.statusText;
         networkRequest.responseHeaders = this._headersMapToHeadersArray(response.headers);
         if (response.encodedDataLength >= 0)
             networkRequest.setTransferSize(response.encodedDataLength);
         if (response.headersText)
             networkRequest.responseHeadersText = response.headersText;
@@ skipping 48 matching lines @@
         if (!networkRequest.mimeType)
             return true; // Might be not known for cached resources with null responses.
 
         if (networkRequest.mimeType in WebInspector.NetworkManager._MIMETypes)
             return networkRequest.type.name() in WebInspector.NetworkManager._MIMETypes[networkRequest.mimeType];
 
         return false;
     },
 
     /**
-     * @param {!NetworkAgent.Response} response
-     * @return {boolean}
-     */
-    _isNull: function(response)
-    {
-        if (!response)
-            return true;
-        return !response.status && !response.mimeType && (!response.headers || !Object.keys(response.headers).length);
-    },
-
-    /**
      * @param {!NetworkAgent.RequestId} requestId
      * @param {!PageAgent.FrameId} frameId
      * @param {!NetworkAgent.LoaderId} loaderId
      * @param {string} documentURL
      * @param {!NetworkAgent.Request} request
      * @param {!NetworkAgent.Timestamp} time
      * @param {!NetworkAgent.Initiator} initiator
      * @param {!NetworkAgent.Response=} redirectResponse
      */
     requestWillBeSent: function(requestId, frameId, loaderId, documentURL, request, time, initiator, redirectResponse)
@@ skipping 29 matching lines @@
     /**
      * @param {!NetworkAgent.RequestId} requestId
      * @param {!PageAgent.FrameId} frameId
      * @param {!NetworkAgent.LoaderId} loaderId
      * @param {!NetworkAgent.Timestamp} time
      * @param {!PageAgent.ResourceType} resourceType
      * @param {!NetworkAgent.Response} response
      */
     responseReceived: function(requestId, frameId, loaderId, time, resourceType, response)
     {
-        // FIXME: move this check to the backend.
-        if (this._isNull(response))
-            return;
-
         var networkRequest = this._inflightRequestsById[requestId];
         if (!networkRequest) {
             // We missed the requestWillBeSent.
             var eventData = {};
             eventData.url = response.url;
             eventData.frameId = frameId;
             eventData.loaderId = loaderId;
             eventData.resourceType = resourceType;
             eventData.mimeType = response.mimeType;
             this._manager.dispatchEventToListeners(WebInspector.NetworkManager.EventTypes.RequestUpdateDropped, eventData);
@@ skipping 252 matching lines @@
         var networkRequest = new WebInspector.NetworkRequest(requestId, url, documentURL, frameId, loaderId);
         networkRequest.initiator = initiator;
         return networkRequest;
     }
 }
 
 /**
  * @type {!WebInspector.NetworkManager}
  */
 WebInspector.networkManager;